Charge controlling agent for electrostatic image development, and toner and charge-imparting material employing it
US5721084A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09791
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A charge controlling agent for electrostatic image development, which is a metallic compound of a compound of the formula (I): ##STR1## wherein each of A and R is a substituted or unsubstituted aromatic ring residue, and --O and --CONH--R are bonded to positions adjacent to each other on the aromatic ring residue A, or the formula (II): ##STR2## wherein each of A.sup.1, A.sup.2, R.sup.1 and R.sup.2 is a substituted or unsubstituted aromatic ring residue, n is an integer, and --O and --CONHR.sup.1, and --O and --CONH--R.sup.2, are bonded to positions adjacent to each other on the aromatic ring residues A.sup.1 and A.sup.2, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.